Electronic calculator having the functions of telephone book, address book, calendar, schedule book and memo book



FIG. 1 is a front elevation view of an electronic calculator having the functions of telephone book, address book, calendar, schedule book and memo book showing our new design;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is a front elevation view thereof with the cover closed; and,

FIG. 9 is a right side elevation view thereof with the cover closed. 

The ornamental design for an electronic calculator having the functions of telephone book, address book, calendar, schedule book and memo book, as shown and described. 